Appendix talk:Fishing Rod/@comment-32423741-20170707150154/@comment-26557106-20170711015211

The wiki lists the pokemons "first" encounteral spot in the game, they may or may not be found on other places.

Your milestone will stay with you whilst fishing until you break it I'm pretty sure.

There are listed locations for the finneon and spheal, there are very VERY faint lines under them. In case you are still curious, finneon can be caught at rosecove beach, and the spheal can be caught on Route 15.